﻿/*
 * Copyright © 2002-2011 the original author or authors.
 *
 * Licensed under the Apache License, Version 2.0 (the "License");
 * you may not use this file except in compliance with the License.
 * You may obtain a copy of the License at
 *
 *      http://www.apache.org/licenses/LICENSE-2.0
 *
 * Unless required by applicable law or agreed to in writing, software
 * distributed under the License is distributed on an "AS IS" BASIS,
 * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
 * See the License for the specific language governing permissions and
 * limitations under the License.
 */

using System.ServiceModel;
using Microsoft.Extensions.Logging;
using Spring.Objects.Factory;

namespace Spring.ServiceModel;

/// <summary>
/// <see cref="IFactoryObject"/> that creates a channel that is used by clients
/// to send messages to a specified endpoint address.
/// </summary>
/// <typeparam name="T">The type of channel produced by the channel factory.</typeparam>
/// <author>Bruno Baia</author>
public class ChannelFactoryObject<T> : ChannelFactory<T>, IFactoryObject
{
    private static readonly ILogger Log = LogManager.GetLogger(typeof(ChannelFactoryObject<>));

    private bool _isSingleton = true;
    private string _endpointConfigurationName;

    /// <summary>
    /// Creates a new instance of the <see cref="ChannelFactoryObject{T}"/> class.
    /// </summary>
    /// <param name="endpointConfigurationName">
    /// The configuration name used for the endpoint.
    /// </param>
    public ChannelFactoryObject(string endpointConfigurationName)
        : base(endpointConfigurationName)
    {
        this._endpointConfigurationName = endpointConfigurationName;
    }

    /// <summary>
    /// Gets the configuration name used for the endpoint.
    /// </summary>
    public string EndpointConfigurationName
    {
        get { return this._endpointConfigurationName; }
    }

    /// <summary>
    /// Return an instance (possibly shared or independent) of the channel
    /// managed by this factory.
    /// </summary>
    /// <returns>
    /// An instance (possibly shared or independent) of the channel managed by
    /// this factory.
    /// </returns>
    public object GetObject()
    {
        if (Log.IsEnabled(LogLevel.Debug))
        {
            Log.LogDebug(String.Format(
                "Creating channel of type '{0}' for the specified endpoint '{1}'...",
                typeof(T).FullName, this._endpointConfigurationName));
        }

        return this.CreateChannel();
    }

    /// <summary>
    /// Return the <see cref="System.Type"/> of channel that this
    /// <see cref="Spring.Objects.Factory.IFactoryObject"/> creates.
    /// </summary>
    public Type ObjectType
    {
        get { return typeof(T); }
    }

    /// <summary>
    /// Is the object managed by this factory a singleton or a prototype ?
    /// </summary>
    /// <remarks>
    /// Default value is <see langword="true"/>.
    /// </remarks>
    public bool IsSingleton
    {
        get { return this._isSingleton; }
        set { this._isSingleton = value; }
    }
}